But even if the bubbles where somewhat large with the flex tubing, that would mean the CO2 is pretty much all CO2 when it hits the plant's leaves from below. You would waste more gas with larger bubbles and have reduced contact with the leaves, but you may want to try it out.

Regards,
Tom Barr

thanks again for the info Tom ....

i am trying to hunt around here inn sydney to see if i can find a LFS that stocks the limewood stones ... will let everyone know how i go ...

in the meantime i just came accross a thing called a "Supreme Aqau Mist Maker M10 " ... there is a link to it here ... it's about 2 thirds of the way down the bottom of the page ... for some reason i couldn't get it to link directly to teh item ... but there is no description of what it does ... are theese gizmos suitable ... or do they just sound like they would be

anybodty tried one of these? ... please let us know


with regards
aussietanker

I haven't tried one of these, but it sure sounds and looks like it makes a water mist in the air, instead of an air mist in the water. I don't see a use for it in an aquarium - maybe in a terrarium it would work well.